GIMP 2.8 Python Plugin.This plugin allows you to create layer mask from another layer mask.Or create layer mask from grayscale copy of layer.I hope this plugin will be useful for someone else.

Installation Instructions:1. Extract "create-layer-mask-from.py" from .zip archive to the ".../.gimp-2.x/plug-ins/" directory.2. Make sure that the extracted file is executable.3. If you are already running GIMP, close and reopen it.

This plugin requires Python!If you have the "Filters > Python-Fu > Console" menu item you are all set. If not, install Python support for GIMP.